luscomb



2 Sheets-Sheet 2.

(No Model.)

P. W. LUSGOMB.

BOMB GUN.

No. 523,289. Patented July 1'7, 1894.

iii/Z///ij//i/i/Z/////////////////////// EEJZV UNITED STATES FREDERICKW. LUSCOMB, OF NEW BEDFORD, MASSACHUSETTS,

TO WILLIAM LEWIS, OF SAME PLACE.

PATENT OFFICE.

ASSIGNOR B O M B G U N SPECIFICATION forming part of Letters Patent No.523,289, dated July l7, 1894.

Application filed October 27, 1893. Serial No. 489,330. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK W. LUS- COMB, a citizen of the UnitedStates, residing at New Bedford, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inBomb-Guns, of which the following is a specification.

My invention relates to that class of bomb guns in which the barrel isdetachable, and adapted to have the cartridge inserted in its rear end.

The object of my invention is, first, to provide a firing mechanism,certain in its action, and adapted to be wholly inclosed in a breechpiece which is practically water tight, thereby avoiding the liabilityof becoming clogged with ice; and second, to so arrange the connectionof the barrel with the breech piece, that the cartridge shall beexploded at a distance from the rear end of the barrel, thus renderingit less liable to burst; and so arranging it, that should it burst, noother part of the gun would be injured.

The accompanying drawings illustrate my invention, in which- Figure 1.is a View showing my improved bomb gun, as it appears when ready foruse. Fig. 2. is a view showing the upper side of my improved bomb gun,with the breech piece open, and a portion of the firing mechanism, insection. Fig. 3. is aside view, in longitudinal vertical section throughthe center of my improved bomb gun. Fig. 4.. is a side view of thetrigger. Fig. 5. is afront view of the hammer. Fig. 6. is a view of thefront end of the firing shaft. Fig. 7. is a view of the front end of thebreech piece. Fig. 8. is a side View of the hook, by means of which thegun is cooked.

Similar letters refer to similar parts in the several views.

a, represents the breech piece, having its rear end provided with a polesocket c, and its front end, with the screw threaded projection 6.

d, represents one side of the breech piece which is hinged thereto, andadapted to be raised as shown when the gun is to be cocked, and held ina closed position, by a catch (F.

The projection c, has an opening in its center, communicating with theinterior of the breech piece a, in which opening, rests the front end ofthe firing shaft a, provided with a spline a which fits in a groove insaid opening, in order to prevent said shaftjrom turning. The rear endof said firing shaft, rests in a recess 0, in the rear wall of thebreech piece. The firing shaft a, is further provided with a shoulder aa firing pin a, and a spline a 6', represents a block, secured in thefront end of the opening in the projection e, which is counterbored forthe purpose, and is provided with the recess 6 to receive the spiralspring a and an opening in its center for the passage. therethrough ofthe firing pin a. The function of the spring a is to retract the firingpin a, after it has been driven into the cap of the cartridge by thehammer d.

(1', represents the hammer, having a hook d adapted to slide on thesmaller portion of the shaft a, and is prevented from turning on saidshaft, by the spline a The side of the hammer is provided withapin g,adapted to engage with a projection 9 on the trigger 9 which is pivotedto the side of the breech piece, in such a manner as to be supported, bythe spring in a diagonal position over the slot is. The ends of thespring 8 encircle the pins 9 and g and the spring is thereby, held inplace.

8, represents a spiral spring, surrounding the shaft at, having itsfront end bearing against the hammer d, and its rear end, resting in theannular groove 5 h, represents a shaft having enlarged head if, andprovided with the projection h, adapted to slide in a socket h securedto the side of the breech piece a, and having a slot in its inner sideto coincide with the slot is, in the side of the breech piece, throughwhich, the projection 71., passes to actuate the trigger, as shown inFigs. 2. and 3.

i, represents a rod, having an offset 1'', secured in the head of theshaft h, and project ing beyond the barrel of the gun.

b, represents the barrel of the gun, interiorly screw threaded at itsrear end, to fit the screw threaded projection e, and chambered toreceive the cartridge b. The cartridge chamber is arranged at such adistance from the rear end of the barrel, that the end of the projectione, will bear against the rim of the cartridge, before the barrel bringsup against the face b, of the breech piece ;therebyholdingitfirmly,andpreventing rel explode, no other part of the gun would be injured; andasall the parts of the gun are interchangeable, another barrel can bequickly substituted.

0 indicates lugs projecting from one side of each end of the breechpiece, having orifices 0 adapted to receive the tapered shank ofaharpoon, asshown in Fig. 1. 1

Having thus described my invention, what I claim, and desire to secureby Letters Patent, isr 1. In abomb gun of the character described, thecombination of the hammer d, having the hook d adapted to slide on theshaft a, and having a pin g, projecting from its side;

the shaft a, adapted to have a slight longitudinal movement in thebreech piece of the gun and having the shoulder a and providedwith'splines a and a whereby said shaft is prevented from axial motion,and having a firing pin afiprojecting from its forward end; the block e,having chamber e secured in the front end of the breech piece, andprovided with an opening in'its center for the passage of the firingpin; the spiral spring e the spiral spring 8, surrounding said shaft01,, and adapted to impel said hammer at certain times; the trigger ghaving projection 9 pivoted to the side of the breech piece; the

2 v teases spiral-spring 8 adapted to support. said trig-.

ger in position so that its projection g, shall engage the pin g, on thehammer,.at certain times; a shaft it, provided with a rod 1', extendingbeyond the muzzle of the gun, adapted to slide in-a'socket secured tothe side of the breech piece, and provided with a projection h,extending through a slot in the side of the breech piece and engagingthe trigger, whereby the hammer, when cocked, is released by shiftingsaid rod 11, to the rear; and a barrel 1), interiorly screwth'readed atits rear end to fit the screw threaded projection 6, of the breechpiece, and chambered to receive a, cartridge, all as shown anddescribed.

2. In a breech loading bomb gun,the combination of a breech-piececontaining firing devices of the character described, adapted to beactuated as described, and having its front provided with anexteriorlyscrew threaded projection containing the firing pin; and abarrel, having its rear end interiorly screw-threaded to fit saidprojection, and provided with a cartridge chamber arranged immediatelyin front of said interior sore thread, whereby the rim of the cartridgeshell is firmly clamped between the end of the projection on thebreech-piece,- and the cartridge chamber, and the cartridge .explodedata distance from the rear-end of the barrel, as shown, and for thepurpose set forth.

FREDERICK W. LUSCOMB.

Witnesses:

EDGAR R. LEWIS; HENRY W. MASON.

